刨除料在分離與回收試驗上，遭遇到最大困難在於回收瀝青膠泥時，如何把甲苯與粉塵完全分離出來，甲苯回收不完全或含有粉塵對於回收瀝青膠泥之基本性質影響很大，而目前分離回收之方法及其整個作業時程與操作員熟練度等，使得廠商難以落實再生瀝青混凝土之品質檢驗。 本研究從日本引進自動瀝青蒸餾回收設備(Automatic Asphalt Distillation Recovery Method, AADM)，與真空濃縮機法(Vacuum Concentrator Method, VCM)進行比較，研究內容主要分為二個部份，1. 針對目前分離回收之方法及其整個標準作業程序與操作員熟練度等，提出最適分離回收法之選定，2. 如何提升再生瀝青混凝土品質管理進行研究。 經試驗結果之比較，認為可採用AADM取代VCM進行瀝青膠泥回收作業，降低人為操作與試驗之誤差，透過拌合廠自主品管與自動化試驗設備，並同時建議再生瀝青混凝土之抽樣檢驗時機點，與省、縣及鄉道的再生瀝青混凝土品質管理運作，以確保拌合廠所生產的再生瀝青混凝土品質。 Excluding the proceeds from the separation and recovery of Reclaimed Asphalt Pavement (RAP), difficulties encountered include: (1) recycling asphalt binder; (2) completing separation of toluene and dust; (3) recovering incomplete toluene or toluene-containing dust for the recovery of the basic properties of the asphalt binder; and (4) prescribing recovery methods, time, and operator proficiency. This makes implementation of quality inspection difficult for manufacturers of recycled asphalt concrete. This study from Japan’s Automatic Asphalt Distillation Recovery Method (AADM) and Vacuum Concentrator Method (VCM) is presented in two parts: (1) present separation and recovery method, standard operating procedures, and operator proficiency for optimal separation and recovery methods; (2) research of improved quality management of recycled asphalt concrete (RAC). We show that VCM can be used instead of asphalt binder AADM in recovery operations. They independently reduce operation, testing, and human error through mixing plant quality control and automated test equipment. We also propose RAC sample testing at time point, province, county, and township road and a RAC quality management system to ensure mixing plants’ RAC quality.
